According to GFXBench, the Galaxy A9 Pro, model number SM-A9100, will be featuring 5.5-inch 1080p display, Qualcomm Octa-core processor clocked at 1.8GHz (most likely Snapdragon 652), Adreno 510 GPU, 4GB RAM, 32GB internal storage, 16MP shooter and 8MP front-facing camera, and TouchWiz on top of Android 6.0.1 Marshmallow.
Similar to the recent Galaxy A devices, the Samsung Galaxy A9 Pro is expected to be available first in China.
GFXBench